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EP3691689A1 - Programmable dendritic drugs - Google Patents

Programmable dendritic drugs

Info

Publication number
EP3691689A1
EP3691689A1 EP18792814.8A EP18792814A EP3691689A1 EP 3691689 A1 EP3691689 A1 EP 3691689A1 EP 18792814 A EP18792814 A EP 18792814A EP 3691689 A1 EP3691689 A1 EP 3691689A1
Authority
EP
European Patent Office
Prior art keywords
compound
occurrence
independently
linker
compounds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18792814.8A
Other languages
German (de)
English (en)
French (fr)
Inventor
Tracy Matray
Hesham SHERIF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Group Corp
Original Assignee
Sony Corp
Sony Corp of America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp, Sony Corp of America filed Critical Sony Corp
Publication of EP3691689A1 publication Critical patent/EP3691689A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
    • A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6889—Conjugates wherein the antibody being the modifying agent and wherein the linker, binder or spacer confers particular properties to the conjugates, e.g. peptidic enzyme-labile linkers or acid-labile linkers, providing for an acid-labile immuno conjugate wherein the drug may be released from its antibody conjugated part in an acidic, e.g. tumoural or environment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
    • A61K47/545—Heterocyclic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
    • A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
    • A61K47/605—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the macromolecule containing phosphorus in the main chain, e.g. poly-phosphazene
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6801—Drug-antibody or immunoglobulin conjugates defined by the pharmacologically or therapeutically active agent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6835—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
    • A61K47/6851—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents

Definitions

  • the present invention is generally directed to dendritic biologically active compounds, and methods for their preparation and use in various therapeutic methods.
  • Targeted drug conjugates unlike, e.g., chemotherapy, are intended to target only diseased cells and spare healthy cells.
  • conjugates are composed of a targeting molecule that is linked to a biologically active payload or drug.
  • ADCs Antibody-drug conjugates
  • ADCs are one class of targeted drug conjugates that are of particular interest for cancer treatment.
  • ADCs combine the targeting features of monoclonal antibodies with cancer-killing ability of cytotoxic agents to provide a therapeutic with several advantages over other chemotherapeutics.
  • challenges related to the complexity of ADC constructs, specifically the chemical linker between antibody and drug has caused significant difficulties for development of new and effective therapeutics.
  • Adcetris® and Kadcyla® are commercially available globally (Zevalin® has been approved in China only). Pioneers Pfizer/Wyeth withdrew Mylotarg® in 2010 after safety issues were observed during a comparative clinical trial.
  • embodiments of the present invention are generally directed to compounds useful as a targeted drug conjugate, optionally comprising fluorescent and/or colored dyes that enable selective delivery to targets, such as tumor cells, as well as reagents for their preparation. Methods for preparation of such molecules as well as use of the same for providing therapeutic treatment to a patient in need thereof are also described.
  • Embodiments of the presently disclosed compounds include one or more biologically active moieties covalently linked by a linker ("L").
  • L linker
  • embodiments of the present invention provide compounds that can be incorporated during synthesis or attached post-synthetically.
  • embodiments described herein allow incorporation of multiple biologically active moieties within the same compound as well as the optional inclusion of a targeting moiety (e.g., an antibody).
  • a method of treating a disease comprising administering to a subject in need thereof a therapeutically effective amount of a compound of structure (I) or a composition comprising a compound of structure (I), wherein each M is independently a biologically active moiety effective for treating the disease.
  • 'Amino refers to the -NH 2 group.
  • 'Cyano refers to the -CN group.
  • Niro refers to the -N0 2 group.
  • Alkyl refers to a straight or branched hydrocarbon chain group consisting solely of carbon and hydrogen atoms, containing no unsaturation, having from one to twelve carbon atoms (Ci-Ci 2 alkyl), one to eight carbon atoms (Ci-C 8 alkyl) or one to six carbon atoms (Ci-C 6 alkyl), and which is attached to the rest of the molecule by a single bond, e.g., methyl, ethyl, ⁇ -propyl, 1-methylethyl (z ' so-propyl), «-butyl, «-pentyl, 1, 1-dimethylethyl (t-butyl), 3-methylhexyl, 2-methylhexyl, and the like. Unless stated otherwise specifically in the specification, alkyl groups are optionally substituted.
  • Alkylene or "alkylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing no unsaturation, and having from one to twelve carbon atoms, e.g., methylene, ethylene, propylene, «-butylene, ethenylene, propenylene, «-butenylene, propynylene, «-butynylene, and the like.
  • the alkylene chain is attached to the rest of the molecule through a single bond and to the radical group through a single bond.
  • the points of attachment of the alkylene chain to the rest of the molecule and to the radical group can be through one carbon or any two carbons within the chain. Unless stated otherwise specifically in the specification, alkylene is optionally substituted.
  • alkenylene or “alkenylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing at least one carbon-carbon double bond and having from two to twelve carbon atoms, e.g., ethenylene, propenylene, «-butenylene, and the like.
  • the alkenylene chain is attached to the rest of the molecule through a single bond and to the radical group through a double bond or a single bond.
  • the points of attachment of the alkenylene chain to the rest of the molecule and to the radical group can be through one carbon or any two carbons within the chain. Unless stated otherwise specifically in the specification, alkenylene is optionally substituted.
  • Alkynylene or “alkynylene chain” refers to a straight or branched divalent hydrocarbon chain linking the rest of the molecule to a radical group, consisting solely of carbon and hydrogen, containing at least one carbon-carbon triple bond and having from two to twelve carbon atoms, e.g., ethenylene, propenylene, «-butenylene, and the like.
  • the alkynylene chain is attached to the rest of the molecule through a single bond and to the radical group through a double bond or a single bond.
  • the points of attachment of the alkynylene chain to the rest of the molecule and to the radical group can be through one carbon or any two carbons within the chain. Unless stated otherwise specifically in the specification, alkynylene is optionally substituted.
  • Alkylether refers to any alkyl group as defined above, wherein at least one carbon-carbon bond is replaced with a carbon-oxygen bond.
  • the carbon-oxygen bond may be on the terminal end (as in an alkoxy group) or the carbon oxygen bond may be internal (i.e., C-O-C).
  • Alkylethers include at least one carbon oxygen bond, but may include more than one.
  • polyethylene glycol (PEG) is included within the meaning of alkylether.
  • an alkylether group is optionally substituted.
  • Alkoxy refers to a group of the formula -OR a where R a is an alkyl group as defined above containing one to twelve carbon atoms. Unless stated otherwise specifically in the specification, an alkoxy group is optionally substituted.
  • Heteroalkyl refers to an alkyl group, as defined above, comprising at least one heteroatom (e.g., Si, N, O, P or S) within the alkyl group or at a terminus of the alkyl group.
  • the heteroatom is within the alkyl group (i.e., the heteroalkyl comprises at least one carbon-[heteroatom] x -carbon bond, where x is 1, 2 or 3).
  • the heteroatom is at a terminus of the alkyl group and thus serves to join the alkyl group to the remainder of the molecule (e.g., Ml-H-A), where Ml is a portion of the molecule, H is a heteroatom and A is an alkyl group).
  • a heteroalkyl group is optionally substituted.
  • exemplary heteroalkyl groups include ethylene oxide (e.g., polyethylene oxide), optionally including phosphorous-oxygen bonds, such as phosphodiester bonds.
  • Heteroalkoxy refers to a group of the formula -OR a where R a is a heteroalkyl group as defined above containing one to twelve carbon atoms. Unless stated otherwise specifically in the specification, a heteroalkoxy group is optionally substituted.
  • Heteroalkylene refers to an alkylene group, as defined above, comprising at least one heteroatom (e.g., N, O, P or S) within the alkylene chain or at a terminus of the alkylene chain.
  • the heteroatom is within the alkylene chain (i.e., the heteroalkylene comprises at least one carbon-[heteroatom]- carbon bond, where x is 1, 2 or 3).
  • the heteroatom is at a terminus of the alkylene and thus serves to join the alkylene to the remainder of the molecule (e.g., M1-H-A-M2, where Ml and M2 are portions of the molecule, H is a heteroatom and A is an alkylene).
  • a heteroalkylene group is optionally substituted.
  • heteroalkylene groups include ethylene oxide (e.g., polyethylene oxide) and the "C,” “HEG,” and “PEG IK” linking groups illustrated below:
  • Multimers of the above C-linker, HEG linker and/or PEG IK linker are included in various embodiments of heteroalkylene linkers.
  • n is 25.
  • Multimers ma comprise, for example, the following structure:
  • x is 0 or an integer greater than 0, for example, x ranges from 0-100 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10).
  • Heteroalkenylene is a heteroalkylene, as defined above, comprising at least one carbon-carbon double bond. Unless stated otherwise specifically in the specification, a heteroalkenylene group is optionally substituted.
  • Heteroalkynylene is a heteroalkylene comprising at least one carbon- carbon triple bond. Unless stated otherwise specifically in the specification, a heteroalkynylene group is optionally substituted.
  • Heteroatomic in reference to a “heteroatomic linker” refers to a linker group consisting of one or more heteroatoms.
  • a phosphoalkyl group is optionally substituted.
  • the -Oalkyl moiety in a phosphoalkyl group is optionally substituted with one or more of hydroxyl, amino, sulfhydryl, phosphate, thiophosphate, phosphoalkyl, thiophosphoalkyl,
  • R a is O or S
  • R b is OH, O " , S “ , OR d or SR d
  • R c is OH, SH, O " , S
  • thiophosphoalkyl group is optionally substituted.
  • the -Oalkylether moiety in a thiophosphoalkyl group is optionally substituted with one or more of hydroxyl, amino, sulfhydryl, phosphate, thiophosphate, phosphoalkyl, thiophosphoalkyl, phosphoalkylether, thiophosphoalkylether or
  • Carbocyclic refers to a stable 3- to 18-membered aromatic or non-aromatic ring comprising 3 to 18 carbon atoms. Unless stated otherwise specifically in the specification, a carbocyclic ring may be a monocyclic, bicyclic, tricyclic or tetracyclic ring system, which may include fused or bridged ring systems, and may be partially or fully saturated. Non-aromatic carbocyclyl radicals include cycloalkyl, while aromatic carbocyclyl radicals include aryl. Unless stated otherwise specifically in the specification, a carbocyclic group is optionally substituted.
  • Cycloalkyl refers to a stable non-aromatic monocyclic or polycyclic carbocyclic ring, which may include fused or bridged ring systems, having from three to fifteen carbon atoms, preferably having from three to ten carbon atoms, and which is saturated or unsaturated and attached to the rest of the molecule by a single bond.
  • Monocyclic cyclocalkyls include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptly, and cyclooctyl.
  • Polycyclic cycloalkyls include, for example, adamantyl, norbornyl, decalinyl, 7,7-dimethyl-bicyclo-[2.2.1]heptanyl, and the like. Unless stated otherwise specifically in the specification, a cycloalkyl group is optionally substituted.
  • Aryl refers to a ring system comprising at least one carbocyclic aromatic ring.
  • an aryl comprises from 6 to 18 carbon atoms.
  • the aryl ring may be a monocyclic, bicyclic, tricyclic or tetracyclic ring system, which may include fused or bridged ring systems.
  • Aryls include, but are not limited to, aryls derived from aceanthrylene, acenaphthylene, acephenanthrylene, anthracene, azulene, benzene, chrysene, fluoranthene, fluorene, as-indacene, s-indacene, indane, indene, naphthalene, phenalene, phenanthrene, pleiadene, pyrene, and triphenylene. Unless stated otherwise specifically in the specification, an aryl group is optionally substituted.
  • Heterocyclic refers to a stable 3- to 18-membered aromatic or non-aromatic ring comprising one to twelve carbon atoms and from one to six heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur.
  • the heterocyclic ring may be a monocyclic, bicyclic, tricyclic or tetracyclic ring system, which may include fused or bridged ring systems; and the nitrogen, carbon or sulfur atoms in the heterocyclic ring may be optionally oxidized; the nitrogen atom may be optionally quatemized; and the heterocyclic ring may be partially or fully saturated.
  • heteroaryls examples include, but are not limited to, dioxolanyl, thienyl[l,3]dithianyl, decahydroisoquinolyl, imidazolinyl,
  • Heteroaryl refers to a 5- to 14-membered ring system comprising one to thirteen carbon atoms, one to six heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, and at least one aromatic ring.
  • the heteroaryl radical may be a monocyclic, bicyclic, tricyclic or tetracyclic ring system, which may include fused or bridged ring systems; and the nitrogen, carbon or sulfur atoms in the heteroaryl radical may be optionally oxidized; the nitrogen atom may be optionally quatemized.
  • Examples include, but are not limited to, azepinyl, acridinyl, benzimidazolyl, benzthiazolyl, benzindolyl, benzodioxolyl, benzofuranyl, benzooxazolyl, benzothiazolyl, benzothiadiazolyl, benzo[£][l,4]dioxepinyl, 1,4-benzodioxanyl, benzonaphthofuranyl, benzoxazolyl, benzodioxolyl, benzodioxinyl, benzopyranyl, benzopyranonyl, benzofuranyl, benzofuranonyl, benzothienyl (benzothiophenyl), benzotriazolyl,
  • Fused refers to a ring system comprising at least two rings, wherein the two rings share at least one common ring atom, for example two common ring atoms.
  • the fused ring is a heterocyclyl ring or a heteroaryl ring
  • the common ring atom(s) may be carbon or nitrogen.
  • Fused rings include bicyclic, tricyclic, tertracyclic, and the like.
  • substituted used herein means any of the above groups (e.g., alkyl, alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene,
  • heteroalkynylene alkoxy, alkylether, alkoxyalkylether, heteroalkyl, heteroalkoxy, phosphoalkyl, phosphoalkylether, thiophosphoalkyl, thiophosphoalkylether, carbocyclic, cycloalkyl, aryl, heterocyclic and/or heteroaryl) wherein at least one hydrogen atom (e.g., 1, 2, 3 or all hydrogen atoms) is replaced by a bond to a non- hydrogen atoms such as, but not limited to: a halogen atom such as F, CI, Br, and I; an oxygen atom in groups such as hydroxyl groups, alkoxy groups, and ester groups; a sulfur atom in groups such as thiol groups, thioalkyl groups, sulfone groups, sulfonyl groups, and sulfoxide groups; a nitrogen atom in groups such as amines, amides, alkylamines, dialkylamines,
  • “Substituted” also means any of the above groups in which one or more hydrogen atoms are replaced by a higher-order bond (e.g., a double- or triple-bond) to a heteroatom such as oxygen in oxo, carbonyl, carboxyl, and ester groups; and nitrogen in groups such as imines, oximes, hydrazones, and nitriles.
  • -OS0 2 R g , -S0 2 OR g NS0 2 R g , and -S0 2 R g R h .
  • R g and R h are the same or different and independently hydrogen, alkyl, alkoxy, alkylamino, thioalkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, heterocyclyl, N- heterocyclyl, heterocyclylalkyl, heteroaryl, N-heteroaryl and/or heteroarylalkyl.
  • Substituted further means any of the above groups in which one or more hydrogen atoms are replaced by a bond to an amino, cyano, hydroxyl, imino, nitro, oxo, thioxo, halo, alkyl, alkoxy, alkylamino, thioalkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, heterocyclyl, N-heterocyclyl, heterocyclylalkyl, heteroaryl, N-heteroaryl and/or heteroarylalkyl group.
  • each of the foregoing substituents may also be optionally substituted with one or more of the above substituents.
  • Conjugation or “bio-conjugation” refers to a chemical strategy for forming a stable covalent bond between two molecules.
  • bio-conjugation is generally used when one of the molecules is a biomolecule (e.g., an antibody).
  • the product or compound resulting from such a strategy is a conjugate, is conjugated, or a grammatically equivalent.
  • Fluorescent refers to a molecule which is capable of absorbing light of a particular frequency and emitting light of a different frequency. Fluorescence is well- known to those of ordinary skill in the art.
  • Cold refers to a molecule which absorbs light within the colored spectrum (i.e., red, yellow, blue and the like).
  • a “linker” refers to a contiguous chain of at least one atom, such as carbon, oxygen, nitrogen, sulfur, silicon, phosphorous and combinations thereof, which connects a portion of a molecule to another portion of the same molecule or to a different molecule, moiety or solid support (e.g., microparticle). Linkers may connect the molecule via a covalent bond or other means, such as ionic or hydrogen bond interactions.
  • biomolecule refers to any of a variety of biological materials, including nucleic acids, carbohydrates, amino acids, polypeptides, glycoproteins, hormones, aptamers and mixtures thereof. More specifically, the term is intended to include, without limitation, RNA, DNA, oligonucleotides, modified or derivatized nucleotides, enzymes, receptors, prions, receptor ligands (including hormones), antibodies, antigens, and toxins, as well as bacteria, viruses, blood cells, and tissue cells.
  • the visually detectable biomolecules of the invention are prepared, as further described herein, by contacting a biomolecule with a compound having a reactive group that enables attachment of the biomolecule to the compound via any available atom or functional group, such as an amino, hydroxy, carboxyl, or sulfhydryl group on the biomolecule.
  • a “reactive group” is a moiety capable of reacting with a second reactive group (e.g., a “complementary reactive group”) to form one or more covalent bonds, for example by a displacement, oxidation, reduction, addition or cycloaddition reaction.
  • Exemplary reactive groups are provided in Table 1, and include for example, nucleophiles, electrophiles, dienes, dienophiles, aldehyde, oxime, hydrazone, alkyne, amine, azide, acylazide, acylhalide, nitrile, nitrone, sulfhydryl, disulfide, sulfonyl halide, isothiocyanate, imidoester, activated ester, ketone, ⁇ , ⁇ -unsaturated carbonyl, alkene, maleimide, a-haloimide, epoxide, aziridine, tetrazine, tetrazole, phosphine, biotin, thiirane and the like.
  • Solid support refers to any solid substrate known in the art for solid- phase support of molecules
  • a microparticle refers to any of a number of small particles useful for attachment to compounds of the invention, including, but not limited to, glass beads, magnetic beads, polymeric beads, nonpolymeric beads, and the like.
  • a microparticle comprises polystyrene beads.
  • a “solid support reside” refers to the functional group remaining attached to a molecule when the molecule is cleaved from the solid support. Solid support residues are known in the art and can be easily derived based on the structure of the solid support and the group linking the molecule thereto.
  • a “targeting moiety” is a moiety that selectively binds or associates with a particular target, such as a tumor cell antigen.
  • "Selectively" binding or associating means a targeting moiety preferentially associates or binds with the desired target relative to other targets.
  • the compounds disclosed herein include linkages to targeting moieties for the purpose of selectively binding or associating the compound with a tumor cell antigen (i.e., the target of the targeting moiety), thus allowing delivery of the biologically active moiety to the tumor cell.
  • Exemplary targeting moieties include, but are not limited to, antibodies, antigens, nucleic acid sequences, enzymes, proteins, cell surface receptor antagonists, and the like.
  • the targeting moiety is a moiety, such as an antibody, that selectively binds or associates with a target feature on or in a cell, for example a target feature on a cell membrane or other cellular structure, thus allowing for delivery of a biologically active moiety to or into cells of interest.
  • Small molecules that selectively bind or associate with a desired biological target are also contemplated as targeting moieties in certain embodiments.
  • physiologically cleavable linker refers to a molecular linkage that can be split or separated a prescribed manner, resulting in two or more separate molecules while in the presence of an in vivo or in vitro environment of an organism or cell system.
  • physiological conditions that induce such a cleavage or scission event may include a temperature ranging from about 20 to 40°C, an atmospheric pressure of about 1 atm (i.e., about 101 kPa or about 14.7 psi), a pH of about 6 to 8, a glucose concentration of about 1 to 20 mM, atmospheric oxygen concentration, and earth gravity.
  • physiological conditions include enzymatic conditions (i.e., enzymatic cleavage). Bond cleavage or scission can be homolytic or heterolytic.
  • Embodiments of the invention disclosed herein are also meant to encompass all compounds of structure (I) being isotopically-labelled by having one or more atoms replaced by an atom having a different atomic mass or mass number.
  • isotopes that can be incorporated into the disclosed compounds include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorous, fluorine, chlorine, and iodine, such as 2 H, 3 H, U C, 13 C, 14 C, 13 N, 15 N, 15 0, 17 0, 18 0, 31 P, 32 P, 35 S, 18 F, 36 C1, 123 I, and 125 I, respectively.
  • Isotopically-labeled compounds of structure (I) can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described below and in the following Examples using an appropriate isotopically-labeled reagent in place of the non-labeled reagent previously employed.
  • Solid compound and “stable structure” are meant to indicate a compound that is sufficiently robust to survive isolation to a useful degree of purity from a reaction mixture, and formulation into an efficacious therapeutic agent.
  • Salt includes both acid and base addition salts.
  • Acid addition salt refers to those salts which are formed with inorganic acids such as, but not limited to, hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid and the like, and organic acids such as, but not limited to, acetic acid, 2,2-dichloroacetic acid, adipic acid, alginic acid, ascorbic acid, aspartic acid, benzenesulfonic acid, benzoic acid, 4-acetamidobenzoic acid, camphoric acid, camphor- 10-sulfonic acid, capric acid, caproic acid, caprylic acid, carbonic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane- 1,2-disulfonic acid, ethanesulfonic acid, 2-hydroxyethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, glucoheptonic
  • naphthalene-l,5-disulfonic acid naphthalene-2-sulfonic acid, l-hydroxy-2-naphthoic acid, nicotinic acid, oleic acid, orotic acid, oxalic acid, palmitic acid, pamoic acid, propionic acid, pyroglutamic acid, pyruvic acid, salicylic acid, 4-aminosalicylic acid, sebacic acid, stearic acid, succinic acid, tartaric acid, thiocyanic acid, ⁇ -toluenesulfonic acid, trifluoroacetic acid, undecylenic acid, and the like.
  • Base addition salt refers to those salts which are prepared from addition of an inorganic base or an organic base to the free acid. Salts derived from inorganic bases include, but are not limited to, sodium, potassium, lithium, ammonium, calcium, magnesium, iron, zinc, copper, manganese, aluminum salts and the like.
  • Salts derived from organic bases include, but are not limited to, salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic amines and basic ion exchange resins, such as ammonia, isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, diethanolamine, ethanolamine, deanol, 2-dimethylaminoethanol, 2-diethylaminoethanol,
  • dicyclohexylamine lysine, arginine, histidine, caffeine, procaine, hydrabamine, choline, betaine, benethamine, benzathine, ethylenediamine, glucosamine, methylglucamine, theobromine, triethanolamine, tromethamine, purines, piperazine, piperidine,
  • Particularly preferred organic bases are isopropylamine, diethylamine, ethanolamine, trimethylamine, dicyclohexylamine, choline and caffeine. Crystallizations may produce a solvate of the compounds described herein.
  • Embodiments of the present invention include all solvates of the described compounds.
  • the term "solvate" refers to an aggregate that comprises one or more molecules of a compound of the invention with one or more molecules of solvent.
  • the solvent may be water, in which case the solvate may be a hydrate.
  • the solvent may be an organic solvent.
  • the compounds of the present invention may exist as a hydrate, including a monohydrate, dihydrate, hemihydrate, sesquihydrate, trihydrate, tetrahydrate and the like, as well as the corresponding solvated forms.
  • the compounds of the invention may be true solvates, while in other cases the compounds of the invention may merely retain adventitious water or another solvent or be a mixture of water plus some adventitious solvent.
  • Embodiments of the compounds of the invention may contain one or more stereocenters and may thus give rise to enantiomers, diastereomers, and other stereoisomeric forms that may be defined, in terms of absolute stereochemistry, as (R)- or (S)- or, as (D)- or (L)- for amino acids.
  • Embodiments of the present invention are meant to include all such possible isomers, as well as their racemic and optically pure forms.
  • Optically active (+) and (-), (R)- and (5)-, or (D)- and (L)- isomers may be prepared using chiral synthons or chiral reagents, or resolved using conventional techniques, for example, chromatography and fractional crystallization.
  • Conventional techniques for the preparation/isolation of individual enantiomers include chiral synthesis from a suitable optically pure precursor or resolution of the racemate (or the racemate of a salt or derivative) using, for example, chiral high pressure liquid chromatography (HPLC).
  • HPLC high pressure liquid chromatography
  • stereoisomer refers to a compound made up of the same atoms bonded by the same bonds but having different three-dimensional structures, which are not interchangeable.
  • the present invention contemplates various stereoisomers and mixtures thereof and includes “enantiomers”, which refers to two stereoisomers whose molecules are non-superimposeable mirror images of one another.
  • a “tautomer” refers to a proton shift from one atom of a molecule to another atom of the same molecule.
  • the present invention includes tautomers of any said compounds.
  • Various tautomeric forms of the compounds are easily derivable by those of ordinary skill in the art.
  • embodiments of the present invention are directed to polymers or dendrimers with pendant biologically active moieties.
  • the biologically active moieties are linked by a linking moiety.
  • the linker helps to shield or suspend the biological activity until release of the drug at the desired target.
  • the linker provides a link between the biologically active moiety and a targeting moiety, which acts to increase accumulation of the biologically active moiety at the desired target. That is, the biological activity is only operative or increased due to accumulation at the intended target, thus minimizing potential side effects of the therapeutic (e.g., cytotoxicity).
  • M is, at each occurrence, independently a biologically active moiety, or fragment thereof, a prodrug of a biologically active moiety, or fragment thereof, a fluorescent dye, an imaging agent, or a radioisotope binding site;
  • L 1 , L 2 , L 3 , L 4 and L 5 are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker;
  • L 6 is a physiologically cleavable linker
  • R 1 is, at each occurrence, independently H, alkyl or alkoxy
  • R 3 is, at each occurrence, independently H, OH, SH, alkyl, alkoxy.
  • R a is O or S
  • R b is OH, SH, O " , S " , OR d or SR d ;
  • R c is OH, SH, O " , S " , OR d , OL', SR d , alkyl, alkoxy, heteroalkyl, heteroalkoxy, alkylether, alkoxyalkylether, phosphate, thiophosphate, phosphoalkyl, thiophosphoalkyl, phosphoalkylether or thiophosphoalkylether;
  • R d is a counter ion
  • Q is, at each occurrence, independently a moiety comprising a reactive group, or protected form thereof, capable of forming a covalent bond with a
  • L' is, at each occurrence, independently a linker comprising a covalent bond to Q, a targeting moiety, a linker comprising a covalent bond to a targeting moiety, a linker comprising a covalent bond to a solid support, a linker comprising a covalent bond to a solid support residue, a linker comprising a covalent bond to a nucleoside or a linker comprising a covalent bond to a further compound of structure (i);
  • L 2 ' is, at each occurrence, independently a direct bond, an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker;
  • At least one M is not a fluorescent dye.
  • thiophosphoalkylether in the compound of structure (I) is optionally substituted with one more substituent selected from the group consisting of hydroxyl, alkoxy, alkylether , alkoxyalkylether, sulfhydryl, amino, alkylamino, carboxyl, phosphate, thiophosphate, phosphoalkyl, thiophosphoalkyl, phosphoalkylether and thiophosphoalkylether.
  • substituents are selected to increase cellular or tissue permeation. In related embodiments, substituents are selected to increase cellular or tissue retention.
  • the compound has the structure (I), provided that at least one occurrence m is an integer of one or greater.
  • n 0 and at least one occurrence of R 3 has the following structure:
  • L 2 ' is a direct bond
  • L 1 is at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker. In other embodiments, L 1 is a heteroalkylene linker.
  • the compound has the following structure (IA):
  • L 7 and L 8 are, at each occurrence, independently an alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene or heteroalkynylene linker;
  • R 4 is, at each occurrence, independently OH, SH, O " , S " , OR4 or SRa
  • R 5 is, at each occurrence, independently oxo, thioxo or absent
  • q is, at each occurrence, independently an integer of zero or greater.
  • L 7 is at each occurrence, independently a heteroalkylene linker.
  • L 7 is at each occurrence, independently an alkylene oxide linker.
  • L 7 is polyethylene oxide, and the compound has the following structure (IB):
  • z is an integer from 1 to 100. In some embodiments of (IB), z is an integer from 3 to 6, for example about 6. In some embodiments z is 3. In some embodiments z is 4. In some embodiments, z is 5. In some embodiments, z is 6.
  • the linker L 6 can be used as a point of attachment of the M moiety to the remainder of the compound.
  • a synthetic precursor to the compound of structure (I) is prepared, and the M moiety is attached to the synthetic precursor using any number of facile methods known in the art, for example methods referred to as "click chemistry.”
  • click chemistry any reaction which is rapid and substantially irreversible can be used to attach M to the synthetic precursor to form a compound of structure (I).
  • Exemplary reactions include the copper catalyzed reaction of an azide and alkyne to form a triazole (Huisgen 1, 3-dipolar cycloaddition), reaction of a diene and dienophile (Diels- Alder), strain-promoted alkyne-nitrone cycloaddition, reaction of a strained alkene with an azide, tetrazine or tetrazole, alkene and azide [3+2] cycloaddition, alkene and tetrazine inverse-demand Diels- Alder, alkene and tetrazole photoreaction and various displacement reactions, such as displacement of a leaving group by nucleophilic attack on an electrophilic atom.
  • a triazole Huisgen 1, 3-dipolar cycloaddition
  • Diels- Alder Diels- Alder
  • strain-promoted alkyne-nitrone cycloaddition reaction of a
  • Exemplary displacement reactions include reaction of an amine with: an activated ester; an N- hydroxysuccinimide ester; an isocyanate; an isothioscyanate or the like.
  • the reaction to form L may be performed in an aqueous environment.
  • L is at each occurrence a linker comprising a functional group capable of formation by reaction of two complementary reactive groups, for example a functional group which is the product of one of the foregoing "click" reactions.
  • the functional group can be formed by reaction of an aldehyde, oxime, hydrazone, alkyne, amine, azide, acylazide, acylhalide, nitrile, nitrone, sulfhydryl, disulfide, sulfonyl halide, isothiocyanate, imidoester, activated ester (e.g., N-hydroxysuccinimide ester), ketone, ⁇ , ⁇ -unsaturated carbonyl, alkene, maleimide, a-haloimide, epoxide, aziridine, tetrazine, tetrazole, phosphine, biotin or thi
  • the functional group can be formed by reaction of an alkyne and an azide. In other embodiments, for at least one occurrence of L 6 , the functional group can be formed by reaction of an amine (e.g., primary amine) and an N-hydroxysuccinimide ester or isothiocyanate.
  • an amine e.g., primary amine
  • the functional group comprises an alkene, ester, amide, thioester, disulfide, carbocyclic, heterocyclic or heteroaryl group. In more embodiments, for at least one occurrence of L 6 , the functional group comprises an alkene, ester, amide, thioester, thiourea, disulfide, carbocyclic, heterocyclic or heteroaryl group. In other embodiments, the functional group comprises an amide or thiourea. In some more specific embodiments, at least one occurrence of L 6 comprising a triazolyl functional group. While in other embodiments, at least one occurrence of L 6 comprising an amide or thiourea functional group.
  • L 6 that is able to be cleaved under the appropriate conditions (e.g., physiological conditions). Accordingly, in some embodiments, L 6 comprises an amide bond, an ester bond, a disulfide bond, a hydrazone, a phosphotriester, a diester, ⁇ -glucuronide, a double bond, a triple bond, an ether bond, a ketone, a diol, a cyano, a nitro or combinations thereof.
  • L 6 comprises tert-butyloxycarbonyl, paramethoxybenzyl, dialkyl or diaryldialkoxysilane, orthoester, acetal, ⁇ - thiopropionate, ketal, phosphoramidate, hydrazone, vinyl ether, imine, aconityl, trityl, polyketal, bisarylhydrazone, diazobenzene, vivinal diol, pyrophosphate diester, or valine citrulline.
  • L 6 is, at each occurrence, independently a linker that is cleavable at a pH ranging from 6 to 8.
  • L 6 is a linker that is cleavable at pH 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, or 8.0.
  • L 6 comprises one of the following structures:
  • R is H, methyl, ethyl, isopropyl, t-butyl, or phenyl
  • X is O or CH 2
  • n is an integer greater than 0
  • L 6 -M has the following structure
  • L a and L are each independently optional linkers.
  • L 6 -M has the following structure:
  • L 6a and L 6b are each independently optional linkers.
  • L 6a or L 6b is absent.
  • L 6a or L 6b is present.
  • L 6a and L 6b when present, are each independently alkylene or heteroalkylene.
  • L 6a and L 6b when present, independentl have one of the following structures:
  • L is at each occurrence, independently an optional alkylene or heteroalkylene linker.
  • L 6 has one of the following structures:
  • L and L are, at each occurrence, independently absent, Ci-C 6 alkylene, C 2 -C 6 alkenylene or C 2 -C 6 alkynylene.
  • the com ound has the following structure (IC):
  • L 8 ' is, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker:
  • x 1 , x 2 , x 3 and x 4 are, at each occurrence, independently an integer from 0 to 6;
  • z is an integer from 1 to 100.
  • At least one occurrence of x 1 , x 2 , x 3 or x 4 is 1.
  • x 1 , x 2 , x 3 and x 4 are each 1 at each occurrence.
  • x 1 and x 3 are each 0 at each occurrence.
  • x 2 and x 4 are each 1 at each occurrence.
  • x 1 and x 3 are each 0 at each occurrence, and x 2 and x 4 are each 1 at each occurrence.
  • L 6 comprises a triazolyl functional group. In some other specific embodiments of the compound of structure (IC), L 6 comprises an amide or thiourea functional group. In other embodiments of the compound of structure (IB), L 6 comprises an optional alkylene or heteroalkylene linker.
  • L 7 is, at each occurrence, independently Ci-C 6 alkylene or C2-C 6 alkynylene.
  • the compound has th
  • x 1 , x 2 , x 3 and x 4 are, at each occurrence, independently an integer from 0 to 6:
  • y is an integer from 1 to 6.
  • y is 1. In some embodiments, y is 2. In some embodiments y is 3, 4, 5, or 6. In certain embodiments, at least one occurrence of x 1 , x 2 , x 3 or x 4 is 1. In more specific embodiments, x 1 , x 2 , x 3 and x 4 are each 1 at each occurrence. In some more specific embodiments, the compound of structure (I) has the structure (IE):
  • L y and L are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker.
  • the compound has the following structure (IF):
  • L 9 and L 10 are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker.
  • the com ound has the following structure (IG):
  • L 9 and L 10 are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker.
  • the compound has the following structure (IH):
  • R has the following structure:
  • R 9 and R 10 are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker.
  • L - has one of the followin structures:
  • each occurrence of -L 9 -L 10 - has one of the following structures:
  • At least one occurrence of L 6 has the following structure:
  • each occurrence of L has the following structure:
  • R 4 is, at each occurrence, independently OH, O " or OR d . It is understood that "OR d “ and “SR d “ are intended to refer to O " and S " associated with a cation.
  • the disodium salt of a phosphate group ma be represented as:
  • R d is sodium (Na + ).
  • R 5 is, at each occurrence, oxo.
  • R 1 is, at each occurrence, H.
  • R e is OL'.
  • L' is a targeting moiety or a linker to a targeting moiety.
  • L' is a linker to a targeting moiety, the linker comprising an alkylene oxide or phosphodiester moiety, or combinations thereof.
  • Q a targeting moiety
  • an analyte e.g. , analyte molecule
  • solid support e.g. a solid support residue
  • nucleoside a further compound of structure (I).
  • the linker L' can be any linker suitable for attaching Q, a targeting moiety, an analyte (e.g. , analyte molecule), a solid support, a solid support residue, a nucleoside or a further compound of structure (I) to the compound of structure (I).
  • analyte e.g. , analyte molecule
  • L' is a compound selected to increase or optimize water solubility of the compound.
  • L' is a compound selected to increase or optimize water solubility of the compound.
  • L' comprises an alkylene oxide or phosphodiester moiety, or combinations thereof.
  • L' has the following structure:
  • n are independently an integer from 1 to 10;
  • R e is H, an electron pair or a counter ion
  • L" is the targeting moiety or a linkage to the targeting moiety.
  • n" is an integer from 4 to 10, for example 4, 6 or 10. In other embodiments n" is an integer from 3 to 6, for example 3, 4, 5 or 6.
  • the targeting moiety is an antibody or cell surface receptor antagonist.
  • the antibody or cell surface receptor antagonist is an epidermal growth factor receptor (EGFR) inhibitor, a hepatocyte growth factor receptor (HGFR) inhibitor, an insulin-like growth factor receptor (IGFR) inhibitor, a folate, or a MET inhibitor.
  • the antibody or cell surface receptor antagonist is a tyrosine kinase inhibitor (e.g.
  • gefitinib, erlotinib lapatinib, Vandetanib, neratinib, osimertinib, Tovantinib (ARQ197), Crizotinib, Cabozantinib, tyrphostins (e.g., AG538, AG1024), pyrrolo(2,3-d)- pyrimidine derivatives (e.g., NVP-AEW541), monoclonal antibody (e.g., figitumumab, cetuximab, panitumumab, necitumumab, ganitumab, cixutumumab, dalotuzumab, robatumumab, onartuzumab, Kl, labetuzumab, milatuzumab, lorvotuzumab, inotuzumab), BMS-777607, PF-02341066, PF-04217903, A
  • the antibody or cell surface receptor antagonist targets EGFR (e.g. , EGFRvIII), HER 2, folate receptors, CD 19, CD20, CD22, CD27L, CD30, CD33, CD37, CD56, CD66e, CD70, CD74, CD79b, CA6, CD138, CA 6, mesothelin, nectin 4, STEAPl, MUC16, MaPi2b, GCC, Trop-2, AGS-5, E PP3, carbonic anhydrase IX, GP MB, PDMA,
  • EGFR e.g. , EGFRvIII
  • HER 2 folate receptors
  • CD 19 CD20, CD22, CD27L, CD30, CD33, CD37, CD56, CD66e, CD70, CD74, CD79b
  • CA6, CD138, CA 6 mesothelin, nectin 4, STEAPl, MUC16, MaPi2b, GCC, Trop-2, AGS-5, E PP3, carbonic anhydr
  • L" is an alkylene or heteroalkylene moiety. In some other certain embodiments, L" comprises an alkylene oxide, phosphodiester moiety, sulfhydryl, disulfide or maleimide moiety or combinations thereof.
  • R 2 or R 3 has the following structure:
  • m is, at each occurrence independently an integer from 0 to 100, for example, from 0 to 50. In certain embodiments, m is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25. In certain embodiments m is 0.
  • n is, at each occurrence, independently an integer from 1 to 100, for example, from 1 to 10. In certain embodiments, n is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25.
  • p is, at each occurrence, independently an integer from 1 to 10. In some embodiments, at least one occurrence of p is 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. In a more specific embodiment, at least one occurrence of p is 1, 2, 3, or 4. IN some specific embodiments, each occurrence of p is 1.
  • q is, at each occurrence, independently an integer from 1 to 10.
  • L has one of the following structures:
  • Q is, at each occurrence, independently a moiety comprising a reactive group capable of forming a covalent bond with an analyte molecule or a solid support.
  • Q is, at each occurrence, independently a moiety comprising a reactive group capable of forming a covalent bond with a complementary reactive group Q'.
  • Q' is present on a further compound of structure (I) (e.g., in the R 2 or R 3 position), and Q and Q' comprise complementary reactive groups such that reaction of the compound of structure (I) and the further compound of structure (I) results in covalently bound dimer of the compound of structure (I).
  • Multimer compounds of structure (I) can also be prepared in an analogous manner and are included within the scope of embodiments of the invention.
  • the type of Q group and connectivity of the Q group to the remainder of the compound of structure (I) is not limited, provided that Q comprises a moiety having appropriate reactivity for forming the desired bond.
  • Q is a moiety which is not susceptible to hydrolysis under aqueous conditions, but is sufficiently reactive to form a bond with a corresponding group on an analyte molecule or solid support (e.g., an amine, azide or alkyne).
  • analyte molecule or solid support e.g., an amine, azide or alkyne
  • Certain embodiments of compounds of structure (I) comprise Q groups commonly employed in the field of bioconjugati on. For example in some
  • Q comprises a nucleophilic reactive group, an electrophilic reactive group or a cycloaddition reactive group.
  • Q comprises a sulfhydryl, disulfide, activated ester, isothiocyanate, azide, alkyne, alkene, diene, dienophile, acid halide, sulfonyl halide, phosphine, a-haloamide, biotin, amino or maleimide functional group.
  • the activated ester is an N- succinimide ester, imidoester or polyflourophenyl ester.
  • the alkyne is an alkyl azide or acyl azide.
  • Q groups can be conveniently provided in protected form to increase storage stability or other desired properties, and then the protecting group removed at the appropriate time for coupling with, for example, a targeting moiety or analyte.
  • Q groups include "protected forms" of a reactive group, including any of the reactive groups described above and in the Table 1 below.
  • a "protected form” of Q refers to a moiety having lower reactivity under predetermined reaction conditions relative to Q, but which can be converted to Q under conditions, which preferably do not degrade or react with other portions of the compound of structure (I).
  • One of skill in the art can derive appropriate protected forms of Q based on the particular Q and desired end use and storage conditions. For example, when Q is SH, a protected form of Q includes a disulfide, which can be reduce to reveal the SH moiety using commonly known techniques and reagents.
  • the SH moiety will tend to form disulfide bonds with another sulfhydryl group, for example on another compound of structure (I). Accordingly, some embodiments include compounds of structure (I), which are in the form of disulfide dimers, the disulfide bond being derived from SH Q groups.
  • R 2 and R 3 are also included within the scope of certain embodiments.
  • compounds of structure (I) wherein one, or both, of R 2 and R 3 comprises a linkage to a further compound of structure (I).
  • R 2 and R 3 are also included within the scope of certain embodiments.
  • exemplary embodiments of such compounds of structure (I) have one of the following structures (la 1 ) or (lb 1 ):
  • each occurrence of R ,R,R,L, L,L,L,L,L,M, m, n and p are independently as defined for a compound of structure (I);
  • a is, at each occurrence, independently an integer greater than 1, for example from 1 to 100, or 1 to 10; and L" is a linker comprising a functional group resulting from reaction of a Q moiety with a corresponding Q' moiety.
  • the Q moiety is conveniently masked (e.g., protected) as a disulfide moiety, which can later be reduced to provide an activated Q moiety for binding to a desired targeting moiety.
  • the Q moiety may be masked as a disulfide having the followin structure:
  • R is an optionally substituted alkyl group.
  • Q is provided as a disulfide moiety havin the following structure:
  • n is an integer from 1 to 10, for example 6.
  • the targeting moiety is an antibody or cell surface receptor antagonist.
  • the solid support is a polymeric bead or non-polymeric bead.
  • q is another variable that can be selected based on the desired solubility, permeation effect or therapeutic application.
  • q is, at each occurrence, independently an integer from 1 to 10. In other embodiments, q is, at each occurrence, independently an integer from 1 to 5, for example 1, 2, 3, 4 or 5.
  • q is, at each occurrence, independently an integer greater than 2, and z is an integer from 3 to 10, for example in some embodiment q is, at each occurrence, independently an integer greater than 2, such as 3, 4, 5 or 6, and z is an integer from 3 to 6.
  • the solubility, permeation or retention can also be tuned by selection of different values of n and m.
  • n and m are at each occurrence, independently is an integer from 1 to 100.
  • n and m are at each occurrence, independently an integer from 1 to 10.
  • n and m are at each occurrence, independently 1.
  • n and m are at each occurrence, independently 2.
  • n is 3.
  • n and m are at each occurrence, independently 4. In some embodiments n and m are at each occurrence, independently 5. In some embodiments n and m are at each occurrence, independently 6. In some embodiments n and m are at each occurrence, independently 7. In some embodiments n and m are at each occurrence, independently 8. In some embodiments n and m are at each occurrence, independently 9. In some embodiments n and m are at each occurrence, independently 10.
  • Tumor cell antigens include tumor-specific antigens and tumor- associated antigens, for example EGFR, HER 2, folate receptors, CD20, CD33, oncofetal antigens (e.g., alphafetoprotein, carcinoembryonic antigen, immature laminin receptor, TAG-72), CA-125, MUC-1, epithelial tumor antigen, tyrosinase, melanoma- associated antigen (MAGE), and abnormal products of RAS or p53.
  • oncofetal antigens e.g., alphafetoprotein, carcinoembryonic antigen, immature laminin receptor, TAG-72
  • CA-125 e.g., alphafetoprotein, carcinoembryonic antigen, immature laminin receptor, TAG-72
  • CA-125 e.g., CA-125, MUC-1, epithelial tumor antigen, tyrosinase, melanom
  • Tumor cell antigens may also include antigens characterized as oncofetal, oncoviral (e.g., HPV E6, E7), overexpressed/accumulated (e.g., BING-4, calcium activated chloride channel 2, 9D7, Ep-CAM, EphA3, HER2, telomerase, mesothelin, SAP-1, survivin), cancer-tetis (e.g., BAGE family, CAGE family, GAGE family, MAGE family, SAGE family, XAGE family), lineage-restricted, mutated, post-translationally altered, idiotypic, CT9 or CT10 (e.g., NY-ESO-l/LAGE-1, PRAME).
  • oncofetal e.g., HPV E6, E7
  • overexpressed/accumulated e.g., BING-4, calcium activated chloride channel 2, 9D7, Ep-CAM, EphA3, HER2, telomerase, mesothelin, SAP-1, survivin
  • M is at each occurrence, independently an NSAID, a kinase inhibitor, an anthracycline, and EGFR inhibitor or an alkylating agent.
  • the biologically active moiety is an anti-cancer drug.
  • M is at each occurrence, independently an anticancer drug, and the targeting moiety is an antibody specific for a tumor cell antigen.
  • Anti-cancer drug includes derivatives. That is, and anti-cancer drug that has been modified or derivatized such that the drug can be conjugated or attached to another molecule (e.g., to include Q moieties).
  • maytansine is a cancer drug and maytansinoids are cancer drug derivatives.
  • the anti-cancer drug is an epidermal growth factor receptor (EGFR) inhibitor, phosphatidylinositol kinase (PI3K) inhibitor, insulin- like growth factor receptor (IGF 1R) inhibitor, Janus kinase (JAK) inhibitor, a Met kinase inhibitor, a SRC family kinase inhibitor, a mitogen-activated protein kinase (MEK) inhibitor, an extracellular-signal-regulated kinase (ERK) inhibitor, a
  • EGFR epidermal growth factor receptor
  • PI3K phosphatidylinositol kinase
  • IGF 1R insulin- like growth factor receptor
  • JK Janus kinase
  • Met kinase inhibitor ase inhibitor
  • SRC family kinase inhibitor a mitogen-activated protein kinase (MEK) inhibitor
  • MEK mitogen-activated protein kinase
  • ERK extracellular
  • topoisom erase inhibitors such as irinotecan, or such as etoposide, or such
  • taxanes such as anti -microtubule agents including paclitaxel and docetaxel
  • anti -metabolite agents such as 5-FU or such as gemcitabine
  • alkylating agents such as cisplatin or such as cyclophosphamide
  • Anti-cancer drugs that can be modified and incorporated into embodiments of compounds of the present disclosure include, for example, auristatin F; auristatin E; maytansine; calicheamicin; paclitaxel; doxorubicin; cryptophycin;
  • anti-cancer drugs include Gleevec® (Imatinib Mesylate), Velcade® (bortezomib), Casodex (bicalutamide), Iressa®
  • alkylating agents such as thiotepa and cyclosphosphamide (CYTOXAN®); alkyl sulfonates such as busulfan, improsulfan and piposulfan;
  • aziridines such as benzodopa, carboquone, meturedopa, and uredopa; ethylenimines and methylamelamines including altretamine, triethylenemelamine,
  • triethylenephosphoramide, triethylenethiophosphaoramide and trimethylolomelamine nitrogen mustards such as chlorambucil, chlornaphazine, cholophosphamide, estramustine, ifosfamide, mechlorethamine, mechlorethamine oxide hydrochloride, melphalan, novembichin, phenesterine, prednimustine, trofosfamide, uracil mustard; nitrosureas such as carmustine, chlorozotocin, fotemustine, lomustine, nimustine, ranimustine; antibiotics such as aclacinomysins, actinomycin, authramycin, azaserine, bleomycins, cactinomycin, calicheamicin, carabicin, carminomycin, carzinophilin, Casodex®, chromomycins, dactinomycin, daunorubicin, detorubicin, 6-di
  • aminoglutethimide, mitotane, trilostane; folic acid replenisher such as frolinic acid; aceglatone; aldophosphamide glycoside; aminolevulinic acid; amsacrine; bestrabucil; bisantrene; edatraxate; defofamine; demecolcine; diaziquone; elfomithine; elliptinium acetate; etoglucid; gallium nitrate; hydroxyurea; lentinan; lonidamine; mitoguazone; mitoxantrone; mopidamol; nitracrine; pentostatin; phenamet; pirarubicin; podophyllinic acid; 2-ethylhydrazide; procarbazine; PSK.RTM.; razoxane; sizofiran; spirogermanium; tenuazonic acid; triaziquone; 2,2',2"-trichlor
  • Ara-C arabinoside
  • cyclophosphamide thiotepa
  • taxanes e.g. paclitaxel
  • cancer drugs include anti-hormonal agents that act to regulate or inhibit hormone action on tumors such as anti-estrogens including for example tamoxifen, (NolvadexTM), raloxifene, aromatase inhibiting 4(5)-imidazoles, 4- hydroxytamoxifen, trioxifene, keoxifene, LY 117018, onapristone, and toremifene (Fareston); and anti-androgens such as flutamide, nilutamide, bicalutamide, leuprolide, and goserelin; chlorambucil; gemcitabine; 6-thioguanine; mercaptopurine;
  • methotrexate platinum analogs such as cisplatin and carboplatin; vinblastine; platinum; etoposide (VP- 16); ifosfamide; mitomycin C; mitoxantrone; vincristine; vinorelbine; navelbine; novantrone; teniposide; daunomycin; aminopterin; xeloda; ibandronate; camptothecin-11 (CPT-11); topoisomeRASe inhibitor RFS 2000;
  • DMFO difluoromethylornithine
  • anti-cancer drugs such as Herceptin®, Avastin®, Erbitux®, Rituxan®, Taxol®, Arimidex®, Taxotere®, ABVD, AVICINE, Abagovomab, Acridine carboxamide, Adecatumumab, 17-N-Allylamino-17-demethoxygeldanamycin, Alpharadin, Alvocidib, 3-
  • Lucanthone Lurtotecan
  • Mafosfamide Mitozolomide
  • Nafoxidine Nedaplatin
  • Olaparib Olaparib
  • Ortataxel PAC-1
  • Pawpaw Pixantrone
  • Proteasome inhibitor Rebeccamycin, Resiquimod, Rubitecan, SN-38, Salinosporamide A, Sapacitabine, Stanford V,
  • M is selected based on the desired therapeutic and/or optical properties, for example based on treating a specific disease or condition (e.g., cancer) or producing a particular color and/or fluorescence emission wavelength.
  • M is the same at each occurrence; however, it is important to note that each occurrence of M need not be an identical M, and certain embodiments include compounds wherein M is not the same at each occurrence.
  • each M is not the same and the different M moieties are selected to have different therapeutic properties (e.g., cytotoxic and anti -inflammatory).
  • each M is not the same and the different M moieties are selected to have the same or similar therapeutic properties (e.g., cytotoxicity).
  • each M is independently selected from the following:
  • M is the same. In other embodiments, each M is different. In still more embodiments, one or more M is the same and one or more M is different. In some embodiments selected occurrences of M are not the same and the different M moieties are selected to have absorbance and/or emissions for use in fluorescence resonance energy transfer (FRET) methods. For example, in such embodiments the different M moieties are selected such that absorbance of radiation at one wavelength causes emission of radiation at a different wavelength by a FRET mechanism. Exemplary M moieties can be appropriately selected by one of ordinary skill in the art based on the desired end use. Exemplary M moieties for FRET methods include fluorescein and 5-TAMRA (5-carboxytetramethylrhodamine, succinimidyl ester) dyes.
  • FRET fluorescence resonance energy transfer
  • M may be attached to the remainder of the molecule from any position
  • M (i.e., atom) on M.
  • M i.e., atom
  • One of skill in the art will recognize means for attaching M to the remainder of molecule. Exemplary methods include the "click" reactions described herein.
  • M is a fluorescent or colored moiety. Any fluorescent and/or colored moiety may be used, for examples those known in the art and typically employed in colorimetric, UV, and/or fluorescent assays may be used.
  • M moieties which are useful in various embodiments of the invention include, but are not limited to: Xanthene derivatives (e.g., fluorescein, rhodamine, Oregon green, eosin or Texas red); Cyanine derivatives (e.g., cyanine,
  • CyTRAK Orange Pyrene derivatives such as cascade blue; Oxazine derivatives (e.g., Nile red, Nile blue, cresyl violet, oxazine 170); Acridine derivatives (e.g., proflavin, acridine orange, acridine yellow); Arylmethine derivatives: auramine, crystal violet, malachite green; and Tetrapyrrole derivatives (e.g., porphin, phthalocyanine or bilirubin).
  • Oxazine derivatives e.g., Nile red, Nile blue, cresyl violet, oxazine 170
  • Acridine derivatives e.g., proflavin, acridine orange, acridine yellow
  • Arylmethine derivatives auramine, crystal violet, malachite green
  • Tetrapyrrole derivatives e.g., porphin, phthalocyanine or bilirubin
  • M moieties include: Cyanine dyes, xanthate dyes (e.g., Hex, Vic, Nedd, Joe or Tet); Yakima yellow; Redmond red; tamra; texas red and alexa fluor® dyes.
  • M comprises three or more aryl or heteroaryl rings, or combinations thereof, for example four or more aryl or heteroaryl rings, or combinations thereof, or even five or more aryl or heteroaryl rings, or combinations thereof.
  • M comprises six aryl or heteroaryl rings, or combinations thereof.
  • the rings are fused.
  • M comprises three or more fused rings, four or more fused rings, five or more fused rings, or even six or more fused rings.
  • M is cyclic.
  • M is cyclic.
  • M is carbocyclic. In other embodiment, M is heterocyclic. In still other embodiments of the foregoing, M, at each occurrence, independently comprises an aryl moiety. In some of these embodiments, the aryl moiety is multicyclic. In other more specific examples, the aryl moiety is a fused-multicyclic aryl moiety, for example which may comprise at least 3, at least 4, or even more than 4 aryl rings.
  • any of the foregoing compounds of structure (I), (IA), (IB), (IC), (ID), (IE), (IF), (IG), (IH), (la') or (lb') M comprises at least one heteroatom.
  • the heteroatom is nitrogen, oxygen or sulfur.
  • M comprises at least one substituent.
  • the substituent is a fluoro, chloro, bromo, iodo, amino, alkylamino, arylamino, hydroxy, sulfhydryl, alkoxy, aryloxy, phenyl, aryl, methyl, ethyl, propyl, butyl, isopropyl, t-butyl, carboxy, sulfonate, amide, or formyl group.
  • M is a dimethylaminostilbene, quinacridone, fluorophenyl-dimethyl-BODIPY, his- fluorophenyl-BODIPY, acridine, terrylene, sexiphenyl, porphyrin, benzopyrene, (fluorophenyl-dimethyl-difluorobora-diaza-indacene)phenyl, (bis-fluorophenyl- difluorobora-diaza-indacene)phenyl, quaterphenyl, bi-benzothiazole, ter-benzothiazole, bi-naphthyl, bi-anthracyl, squaraine, squarylium, 9, 10-ethynylanthracene or ter- naphthyl moiety.
  • M is p-terphenyl, perylene, azobenzene, phenazine, phenanthroline, acridine, thioxanthrene, chrysene, rubrene, coronene, cyanine, perylene imide, or perylene amide or a derivative thereof.
  • M is a coumarin dye, resorufin dye, dipyrrometheneboron difluoride dye, ruthenium bipyridyl dye, energy transfer dye, thiazole orange dye, polymethine or N- aryl-l,8-naphthalimide dye.
  • M is pyrene, perylene, perylene monoimide or 6- FAM or a derivative thereof. In some other embodiments, M has one of the following structures:
  • the compound is a compound selected from Table 2.
  • the compounds in Table 2 are prepared according to the procedures set forth in the Examples and their identity confirmed by mass spectrometry.
  • R 1 , R 2 , R 3 , L, L 1 , L 2 , L 3 , L 4 , L 5 , L 6 , M, m, n, and p have the definitions provided for compounds of structure (I) unless otherwise indicated.
  • M is F, F', F", ⁇ , N', D' or D".
  • F, F' and F" refer to a fluorescein moiety having the following structures, respectively:
  • N' refers to the following structure:
  • R 2 or R 3 comprise dT;
  • dT refers to the following structure:
  • R is H or a direct bond
  • At least occurrence of M has one of the followin structures:
  • Some embodiments include any of the foregoing compounds, including the specific compounds provided in Tables 2 and 3, conjugated to a targeting moiety, such as an antibody.
  • one compound of structure (I) is conjugated to an antibody.
  • 1-2 compounds of structure (I) are conjugated to an antibody.
  • 2 compounds of structure (I) are conjugated to an antibody.
  • 3 compounds of structure (I) are conjugated to an antibody.
  • 4 compounds of structure (I) are conjugated to an antibody.
  • 5 compounds of structure (I) are conjugated to an antibody. In some embodiments, no more than 5 compounds of structure (I) are conjugated to an antibody.
  • reactive dendrimers can be used to prepare compounds of structure (I).
  • these reactive dendrimers are synthetic intermediates that comprise a moiety useful for reacting with a
  • a compound of structure (I) is formed using a reactive dendrimer having the following structure (II):
  • G is, at each occurrence, independently a moiety comprising a reactive group, or protected analogue thereof, capable of forming a covalent bond with a complementary reactive group;
  • L 1 , L 2 , L 3 L 4 , L 5 and L 6a are, at each occurrence, independently an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker;
  • R 1 is, at each occurrence, independently H, alkyl or alkoxy
  • R a is O or S
  • R b is OH, SH, O " , S " , OR d or SR d ;
  • R c is OH, SH, O " , S " , OR d , OL', SR d , alkyl, alkoxy, heteroalkyl, heteroalkoxy, alkylether, alkoxyalkylether, phosphate, thiophosphate, phosphoalkyl, thiophosphoalkyl, phosphoalkylether or thiophosphoalkylether;
  • R d is a counter ion
  • Q is, at each occurrence, independently a moiety comprising a reactive group, or protected form thereof, capable of forming a covalent bond with a complementary reactive group Q' on a targeting moiety
  • L' is, at each occurrence, independently a linker comprising a covalent bond to Q, a targeting moiety, a linker comprising a covalent bond to a targeting moiety, a linker comprising a covalent bond to a solid support, a linker comprising a covalent bond to a solid support residue, a linker comprising a covalent bond to a nucleoside or a linker comprising a covalent bond to a further compound of structure
  • L 2 ' is, at each occurrence, independently a direct bond, an optional alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene, heteroalkynylene or heteroatomic linker;
  • the compound of structure (II) is a compound of Table 4, below:
  • G in the compounds of Table 4 is alkynyl, such as ethynyl. In other embodiments, G in the compounds of Table 4 is an azide. In other embodiments, G in the compounds of Table 4 is amino (NH 2 ). In other embodiments, G in the compounds of Table 4 is an isothiocyanate. In other embodiments, G in the compounds of Table 4 is an activated ester, such as an ester of N-hydroxysuccinimide.
  • Certain embodiments are directed to a therapeutically effective fluorescent compound provided at least one occurrence of M is not a fluorescent dye and at least one occurrence of M is a fluorescent dye.
  • Therapeutically effective fluorescent compounds include compounds comprising at least one biologically active moiety or fragment thereof or a prodrug of a biologically active moiety, or fragment thereof, which emit a fluorescent signal upon excitation with light, such as ultraviolet light.
  • the compound of structure (I) comprises at least one ethylene oxide moiety.
  • compositions comprising the compound of any one of claims and a targeting moiety are also provided.
  • Embodiments of the presently disclosed compounds are "tunable,” meaning that by proper selection of the variables in any of the foregoing compounds, one of skill in the art can arrive at a compound having a desired and/or predetermined molar fluorescence (molar brightness).
  • the "tunability" of certain embodiments of the compounds allows the user to easily arrive at compounds having the desired
  • a method for obtaining a compound having a desired molar fluorescence comprising selecting an M moiety having a known
  • compositions comprising any of the foregoing compounds and one or more targeting moiety (e.g., antibody or cell surface receptor antagonist) are provided in various other embodiments.
  • targeting moiety e.g., antibody or cell surface receptor antagonist
  • use of such compositions in methods for treating a disease the method comprising administering to a subject in need thereof a therapeutically effective amount of a compound of structure (I) or a composition comprising a compound of structure (I) wherein each M is independently a biologically active moiety effective for treating the disease are also provided.
  • composition comprising a compound of structure (I) according any one of the embodiments disclosed herein and a
  • compositions comprising a plurality of conjugates, the conjugates comprising an antibody covalently bound to two or more biologically active moieties via a single linkage, wherein the plurality of conjugates has at least 90% structural homogeneity. In more specific embodiments, the plurality of conjugates has at least 95% structural homogeneity. In related embodiments, the plurality of conjugates has greater than 99% structural homogeneity.
  • the single linkage is a linkage to a polymer backbone, the polymer backbone comprising the two or more biologically active moieties covalently bound thereto.
  • each conjugate independently is a compound according to an embodiment disclosed herein, wherein one of R 2 and R 3 is
  • L' is the antibody or a linker comprising a covalent bond to the antibody.
  • compositions comprising any one (or more) of the foregoing compounds and a pharmaceutically acceptable carrier.
  • the pharmaceutical composition is formulated for oral administration.
  • the pharmaceutical composition is formulated for injection.
  • the pharmaceutical compositions comprise a compound as disclosed herein and an additional therapeutic agent (e.g., anticancer agent).
  • additional therapeutic agent e.g., anticancer agent
  • Suitable routes of administration include, but are not limited to, oral, intravenous, rectal, aerosol, parenteral, ophthalmic, pulmonary, transmucosal, transdermal, vaginal, otic, nasal, and topical administration.
  • parenteral delivery includes intramuscular, subcutaneous, intravenous, intramedullary injections, as well as intrathecal, direct intraventricular, intraperitoneal, intralymphatic, and intranasal injections.
  • a compound as described herein is administered in a local rather than systemic manner, for example, via injection of the compound directly into an organ, often in a depot preparation or sustained release formulation.
  • long acting formulations are administered by implantation (for example subcutaneously or intramuscularly) or by intramuscular injection.
  • the drug is delivered in a targeted drug delivery system, for example, in a liposome coated with organ-specific antibody.
  • the liposomes are targeted to and taken up selectively by the organ.
  • the compound as described herein is provided in the form of a rapid release formulation, in the form of an extended release formulation, or in the form of an intermediate release formulation.
  • the compound described herein is administered topically.
  • the compounds according to the invention are effective over a wide dosage range.
  • dosages from 0.01 to 1000 mg, from 0.5 to 100 mg, from 1 to 50 mg per day, and from 5 to 40 mg per day are examples of dosages that are used in some embodiments.
  • An exemplary dosage is 10 to 30 mg per day. The exact dosage will depend upon the route of administration, the form in which the compound is administered, the subject to be treated, the body weight of the subject to be treated, and the preference and experience of the attending physician.
  • a compound of the invention is administered in a single dose.
  • administration will be by injection, e.g., intravenous injection, in order to introduce the agent quickly.
  • injection e.g., intravenous injection
  • other routes are used as appropriate.
  • a single dose of a compound of the invention may also be used for treatment of an acute condition.
  • a compound of the invention is administered in multiple doses. In some embodiments, dosing is about once, twice, three times, four times, five times, six times, or more than six times per day. In other embodiments, dosing is about once a month, once every two weeks, once a week, or once every other day. In another embodiment a compound of the invention and another agent are administered together about once per day to about 6 times per day. In another embodiment the administration of a compound of the invention and an agent continues for less than about 7 days. In yet another embodiment the administration continues for more than about 6, 10, 14, 28 days, two months, six months, or one year. In some cases, continuous dosing is achieved and maintained as long as necessary.
  • a compound of the invention is administered for more than 1, 2, 3, 4, 5, 6, 7, 14, or 28 days. In some embodiments, a compound of the invention is administered for less than 28, 14, 7, 6, 5, 4, 3, 2, or 1 day. In some embodiments, a compound of the invention is administered chronically on an ongoing basis, e.g., for the treatment of chronic effects.
  • the compounds of the invention are administered in dosages. It is known in the art that due to intersubject variability in compound pharmacokinetics, individualization of dosing regimen is necessary for optimal therapy. Dosing for a compound of the invention may be found by routine experimentation in light of the instant disclosure.
  • the compounds described herein are formulated into pharmaceutical compositions.
  • pharmaceutical compositions are formulated in a conventional manner using one or more
  • physiologically acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically. Proper formulation is dependent upon the route of administration chosen. Any pharmaceutically acceptable techniques, carriers, and excipients are used as suitable to formulate the pharmaceutical compositions described herein: Remington: The Science and Practice of Pharmacy, Nineteenth Ed (Easton, Pa. : Mack Publishing Company, 1995); Hoover, John E., Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton, Pennsylvania 1975; Liberman, H.A. and Lachman, L., Eds., Pharmaceutical Dosage Forms, Marcel Decker, New York, N.Y., 1980; and
  • compositions comprising a compound of structure (I) and a pharmaceutically acceptable diluent(s), excipient(s), or carrier(s).
  • the compounds described are administered as pharmaceutical compositions in which compounds of structure (I) are mixed with other active ingredients, as in combination therapy.
  • the pharmaceutical compositions include one or more compounds of structure (I).
  • a pharmaceutical composition refers to a mixture of a compound of structure (I) with other chemical components, such as carriers, stabilizers, diluents, dispersing agents, suspending agents, thickening agents, and/or excipients.
  • the pharmaceutical composition facilitates administration of the compound to an organism.
  • therapeutically effective amounts of compounds of structure (I) provided herein are administered in a pharmaceutical composition to a mammal having a disease, disorder or medical condition to be treated.
  • the mammal is a human.
  • therapeutically effective amounts vary depending on the severity of the disease, the age and relative health of the subject, the potency of the compound used and other factors.
  • the compounds described herein are used singly or in combination with one or more therapeutic agents as components of mixtures.
  • one or more compounds of structure (I) is formulated in an aqueous solutions.
  • the aqueous solution is selected from, by way of example only, a physiologically compatible buffer, such as Hank's solution, Ringer's solution, or physiological saline buffer.
  • a physiologically compatible buffer such as Hank's solution, Ringer's solution, or physiological saline buffer.
  • one or more compound of structure (I) is/are formulated for transmucosal administration.
  • transmucosal formulations include penetrants that are appropriate to the barrier to be permeated.
  • appropriate formulations include aqueous or non-aqueous solutions.
  • such solutions include physiologically compatible buffers and/or excipients.
  • compounds described herein are formulated for oral administration. Compounds described herein are formulated by combining the active compounds with, e.g., pharmaceutically acceptable carriers or excipients.
  • the compounds described herein are formulated in oral dosage forms that include, by way of example only, tablets, powders, pills, dragees, capsules, liquids, gels, syrups, elixirs, slurries, suspensions and the like.
  • pharmaceutical preparations for oral use are obtained by mixing one or more solid excipient with one or more of the compounds described herein, optionally grinding the resulting mixture, and processing the mixture of granules, after adding suitable auxiliaries, if desired, to obtain tablets or dragee cores.
  • suitable excipients are, in particular, fillers such as sugars, including lactose, sucrose, mannitol, or sorbitol; cellulose preparations such as: for example, maize starch, wheat starch, rice starch, potato starch, gelatin, gum tragacanth, methylcellulose,
  • microcrystalline cellulose hydroxypropylmethylcellulose, sodium
  • Disintegrating agents include, by way of example only, cross-linked croscarmellose sodium, polyvinylpyrrolidone, agar, or alginic acid or a salt thereof such as sodium alginate.
  • dosage forms such as dragee cores and tablets, are provided with one or more suitable coating.
  • suitable coating In specific embodiments, concentrated sugar solutions are used for coating the dosage form.
  • the sugar solutions optionally contain additional components, such as by way of example only, gum arabic, talc, polyvinylpyrrolidone, carbopol gel, polyethylene glycol, and/or titanium dioxide, lacquer solutions, and suitable organic solvents or solvent mixtures.
  • Dyestuffs and/or pigments are also optionally added to the coatings for identification purposes.
  • dyestuffs and/or pigments are optionally utilized to characterize different combinations of active compound doses.
  • Oral dosage forms include push-fit capsules made of gelatin, as well as soft, sealed capsules made of gelatin and a plasticizer, such as glycerol or sorbitol.
  • push-fit capsules contain the active ingredients in admixture with one or more filler.
  • Fillers include, by way of example only, lactose, binders such as starches, and/or lubricants such as talc or magnesium stearate and, optionally, stabilizers.
  • soft capsules contain one or more active compound that is dissolved or suspended in a suitable liquid. Suitable liquids include, by way of example only, one or more fatty oil, liquid paraffin, or liquid polyethylene glycol.
  • stabilizers are optionally added.
  • therapeutically effective amounts of at least one of the compounds described herein are formulated for buccal or sublingual
  • Formulations suitable for buccal or sublingual administration include, by way of example only, tablets, lozenges, or gels.
  • the compounds described herein are formulated for parental injection, including
  • formulations for injection are presented in unit dosage form (e.g., in ampoules) or in multi-dose containers. Preservatives are, optionally, added to the injection formulations.
  • the pharmaceutical compositions are formulated in a form suitable for parenteral injection as sterile suspensions, solutions or emulsions in oily or aqueous vehicles.
  • Parenteral injection formulations optionally contain formulatory agents such as suspending, stabilizing and/or dispersing agents.
  • pharmaceutical formulations for parenteral administration include aqueous solutions of the active compounds in water-soluble form.
  • suspensions of the active compounds e.g., compounds of structure (I) are prepared as appropriate oily injection suspensions.
  • Suitable lipophilic solvents or vehicles for use in the pharmaceutical compositions described herein include, by way of example only, fatty oils such as sesame oil, or synthetic fatty acid esters, such as ethyl oleate or triglycerides, or liposomes.
  • aqueous injection suspensions contain substances which increase the viscosity of the suspension, such as sodium carboxymethyl cellulose, sorbitol, or dextran.
  • the suspension contains suitable stabilizers or agents which increase the solubility of the compounds to allow for the preparation of highly concentrated solutions.
  • the active ingredient is in powder form for constitution with a suitable vehicle, e.g., sterile pyrogen-free water, before use.
  • the compounds of structure (I) are administered topically.
  • the compounds described herein are formulated into a variety of topically administrable compositions, such as solutions, suspensions, lotions, gels, pastes, medicated sticks, balms, creams or ointments.
  • Such pharmaceutical such as solutions, suspensions, lotions, gels, pastes, medicated sticks, balms, creams or ointments.
  • compositions optionally contain solubilizers, stabilizers, tonicity enhancing agents, buffers and preservatives.
  • the compounds of structure (I) are formulated for transdermal administration.
  • transdermal formulations employ transdermal delivery devices and transdermal delivery patches and can be lipophilic emulsions or buffered, aqueous solutions, dissolved and/or dispersed in a polymer or an adhesive.
  • patches are constructed for continuous, pulsatile, or on demand delivery of pharmaceutical agents.
  • the transdermal delivery of the compounds of structure (I) is
  • transdermal patches provide controlled delivery of the compounds of structure (I).
  • the rate of absorption is slowed by using rate-controlling membranes or by trapping the compound within a polymer matrix or gel.
  • absorption enhancers are used to increase absorption.
  • Absorption enhancers or carriers include absorbable pharmaceutically acceptable solvents that assist passage through the skin.
  • transdermal devices are in the form of a bandage comprising a backing member, a reservoir containing the compound optionally with carriers, optionally a rate controlling barrier to deliver the compound to the skin of the host at a controlled and predetermined rate over a prolonged period of time, and means to secure the device to the skin.
  • the compounds of structure (I) are formulated for administration by inhalation.
  • Various forms suitable for administration by inhalation include, but are not limited to, aerosols, mists or powders.
  • Pharmaceutical compositions of any of compound of structure (I) are conveniently delivered in the form of an aerosol spray presentation from pressurized packs or a nebulizer, with the use of a suitable propellant (e.g., dichlorodifluoromethane, trichlorofluoromethane,
  • the dosage unit of a pressurized aerosol is determined by providing a valve to deliver a metered amount.
  • capsules and cartridges of, such as, by way of example only, gelatin for use in an inhaler or insufflator is formulated containing a powder mix of the compound and a suitable powder base such as lactose or starch.
  • the compounds of structure (I) are formulated in rectal compositions such as enemas, rectal gels, rectal foams, rectal aerosols, suppositories, jelly suppositories, or retention enemas, containing conventional suppository bases such as cocoa butter or other glycerides, as well as synthetic polymers such as polyvinylpyrrolidone, PEG, and the like.
  • a low-melting wax such as, but not limited to, a mixture of fatty acid glycerides, optionally in combination with cocoa butter is first melted.
  • compositions are formulated in any conventional manner using one or more physiologically acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically. Proper formulation is dependent upon the route of administration chosen. Any pharmaceutically acceptable techniques, carriers, and excipients are optionally used as suitable. Pharmaceutical compositions comprising a compound of structure (I) are manufactured in a
  • compositions include at least one pharmaceutically acceptable carrier, diluent or excipient and at least one compound of structure (I), described herein as an active ingredient.
  • the active ingredient is in free-acid or free- base form, or in a pharmaceutically acceptable salt form.
  • the methods and pharmaceutical compositions described herein include the use of N-oxides, crystalline forms (also known as polymorphs), as well as active metabolites of these compounds having the same type of activity. All tautomers of the compounds described herein are included within the scope of the compounds presented herein.
  • the compounds described herein encompass unsolvated as well as solvated forms with pharmaceutically acceptable solvents such as water, ethanol, and the like. The solvated forms of the compounds presented herein are also considered to be disclosed herein.
  • compositions optionally include other medicinal or pharmaceutical agents, carriers, adjuvants, such as preserving, stabilizing, wetting or emulsifying agents, solution promoters, salts for regulating the osmotic pressure, buffers, and/or other therapeutically valuable substances.
  • adjuvants such as preserving, stabilizing, wetting or emulsifying agents, solution promoters, salts for regulating the osmotic pressure, buffers, and/or other therapeutically valuable substances.
  • compositions comprising the compounds described herein include formulating the compounds with one or more inert, pharmaceutically acceptable excipients or carriers to form a solid, semi-solid or liquid.
  • Solid compositions include, but are not limited to, powders, tablets, dispersible granules, capsules, cachets, and suppositories.
  • Liquid compositions include solutions in which a compound is dissolved, emulsions comprising a compound, or a solution containing liposomes, micelles, or nanoparticles comprising a compound as disclosed herein.
  • Semi-solid compositions include, but are not limited to, gels, suspensions and creams.
  • compositions described herein include liquid solutions or suspensions, solid forms suitable for solution or suspension in a liquid prior to use, or as emulsions. These compositions also optionally contain minor amounts of nontoxic, auxiliary substances, such as wetting or emulsifying agents, pH buffering agents, and so forth.
  • composition comprising at least one compound of structure (I) illustratively takes the form of a liquid where the agents are present in solution, in suspension or both. Typically when the composition is administered as a solution or suspension a first portion of the agent is present in solution and a second portion of the agent is present in particulate form, in suspension in a liquid matrix.
  • a liquid composition includes a gel formulation. In other embodiments, the liquid composition is aqueous.
  • useful aqueous suspensions contain one or more polymers as suspending agents.
  • Useful polymers include water-soluble polymers such as cellulosic polymers, e.g., hydroxypropyl methylcellulose, and water-insoluble polymers such as cross-linked carboxyl-containing polymers.
  • Certain pharmaceutical compositions described herein comprise a mucoadhesive polymer, selected for example from carboxymethylcellulose, carbomer (acrylic acid polymer),
  • poly(methylmethacrylate), polyacrylamide, polycarbophil, acrylic acid/butyl acrylate copolymer, sodium alginate and dextran are examples of poly(methylmethacrylate), polyacrylamide, polycarbophil, acrylic acid/butyl acrylate copolymer, sodium alginate and dextran.
  • Useful pharmaceutical compositions also, optionally, include solubilizing agents to aid in the solubility of a compound of structure (I).
  • solubilizing agent generally includes agents that result in formation of a micellar solution or a true solution of the agent.
  • Certain acceptable nonionic surfactants for example polysorbate 80, are useful as solubilizing agents, as can ophthalmically acceptable glycols, polyglycols, e.g., polyethylene glycol 400, and glycol ethers.
  • useful pharmaceutical compositions optionally include one or more pH adjusting agents or buffering agents, including acids such as acetic, boric, citric, lactic, phosphoric and hydrochloric acids; bases such as sodium hydroxide, sodium phosphate, sodium borate, sodium citrate, sodium acetate, sodium lactate and tris-hydroxymethylaminomethane; and buffers such as citrate/dextrose, sodium bicarbonate and ammonium chloride.
  • acids such as acetic, boric, citric, lactic, phosphoric and hydrochloric acids
  • bases such as sodium hydroxide, sodium phosphate, sodium borate, sodium citrate, sodium acetate, sodium lactate and tris-hydroxymethylaminomethane
  • buffers such as citrate/dextrose, sodium bicarbonate and ammonium chloride.
  • acids, bases and buffers are included in an amount required to maintain pH of the composition in an acceptable range.
  • useful compositions also, optionally, include one or more salts in an amount required to bring osmolality of the composition into an acceptable range.
  • Such salts include those having sodium, potassium or ammonium cations and chloride, citrate, ascorbate, borate, phosphate, bicarbonate, sulfate, thiosulfate or bisulfite anions; suitable salts include sodium chloride, potassium chloride, sodium thiosulfate, sodium bisulfite and ammonium sulfate.
  • Other useful pharmaceutical compositions optionally include one or more preservatives to inhibit microbial activity. Suitable preservatives include mercury- containing substances such as merfen and thiomersal; stabilized chlorine dioxide; and quaternary ammonium compounds such as benzalkonium chloride,
  • cetyltrimethylammonium bromide and cetylpyridinium chloride are examples of cetyltrimethylammonium bromide and cetylpyridinium chloride.
  • compositions include one or more surfactants to enhance physical stability or for other purposes.
  • Suitable nonionic surfactants include poly oxy ethylene fatty acid glycerides and vegetable oils, e.g., poly oxy ethylene (60) hydrogenated castor oil; and poly oxy ethylene alkylethers and alkylphenyl ethers, e.g., octoxynol 10, octoxynol 40.
  • compositions include one or more antioxidants to enhance chemical stability where required.
  • Suitable antioxidants include, by way of example only, ascorbic acid and sodium metabisulfite.
  • aqueous suspension compositions are packaged in single-dose non-reclosable containers.
  • multiple-dose reclosable containers are used, in which case it is typical to include a preservative in the composition.
  • hydrophobic pharmaceutical compounds are employed. Liposomes and emulsions are examples of delivery vehicles or carriers useful herein. In certain embodiments, organic solvents such as N-methylpyrrolidone are also employed. In additional embodiments, the compounds described herein are delivered using a sustained-release system, such as semipermeable matrices of solid hydrophobic polymers containing the therapeutic agent. Various sustained-release materials are useful herein. In some embodiments, sustained-release capsules release the compounds for a few weeks up to over 100 days. Depending on the chemical nature and the biological stability of the therapeutic reagent, additional strategies for protein stabilization are employed.
  • the formulations described herein comprise one or more antioxidants, metal chelating agents, thiol containing compounds and/or other general stabilizing agents.
  • stabilizing agents include, but are not limited to: (a) about 0.5% to about 2% w/v glycerol, (b) about 0.1% to about 1% w/v methionine, (c) about 0.1% to about 2% w/v monothioglycerol, (d) about 1 mM to about 10 mM EDTA, (e) about 0.01% to about 2% w/v ascorbic acid, (f) 0.003% to about 0.02% w/v polysorbate 80, (g) 0.001% to about 0.05% w/v.
  • polysorbate 20 (h) arginine, (i) heparin, (j) dextran sulfate, (k) cyclodextrins, (1) pentosan poly sulfate and other heparinoids, (m) divalent cations such as magnesium and zinc; or (n)
  • the concentration of one or more compounds provided in the pharmaceutical compositions is less than 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 19%, 18%, 17%, 16%, 15%,14%, 13%, 12%, 11%, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.4%, 0.3%, 0.2%, 0.1%, 0.09%, 0.08%, 0.07%, 0.06%, 0.05%, 0.04%, 0.03%, 0.02%, 0.01%, 0.009%, 0.008%, 0.007%, 0.006%, 0.005%, 0.004%, 0.003%, 0.002%, 0.001%, 0.0009%, 0.0008%, 0.0007%, 0.0006%, 0.0005%, 0.0004%, 0.0003%, 0.0002%, or 0.0001% w/w, w/v or v/v.
  • the concentration of one or more compounds is greater than 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 19.75%, 19.50%, 19.25% 19%, 18.75%, 18.50%, 18.25% 18%, 17.75%, 17.50%, 17.25% 17%, 16.75%, 16.50%, 16.25% 16%, 15.75%, 15.50%, 15.25% 15%, 14.75%, 14.50%, 14.25% 14%, 13.75%, 13.50%, 13.25% 13%, 12.75%, 12.50%, 12.25% 12%, 11.75%, 11.50%, 11.25% 11%, 10.75%, 10.50%, 10.25% 10%, 9.75%, 9.50%, 9.25% 9%, 8.75%, 8.50%, 8.25% 8%, 7.75%, 7.50%, 7.25% 7%, 6.75%, 6.50%, 6.25% 6%, 5.75%, 5.50%, 5.25% 5%, 4.75%, 4.50%, 4.25%, 4%,
  • the concentration of one or more compounds is in the range from approximately 0.0001 ) to approximately 50%, approximately 0.001 ) to approximately 40 %, approximately 0.01% to approximately 30%, approximately 0.02%) to approximately 29%, approximately 0.03% to approximately 28%, approximately 0.04% to approximately 27%, approximately 0.05%> to approximately 26%o, approximately 0.06%> to approximately 25%, approximately 0.07% to
  • the concentration of one or more compounds is in the range from approximately 0.001%) to approximately 10%, approximately 0.01% to approximately 5%, approximately 0.02% to approximately 4.5%, approximately 0.03% to approximately 4%, approximately 0.04% to approximately 3.5%, approximately 0.05%) to approximately 3%, approximately 0.06% to approximately 2.5%,
  • the amount of one or more compounds is equal to or less than 10 g, 9.5 g, 9.0 g, 8.5 g, 8.0 g, 7.5 g, 7.0 g, 6.5 g, 6.0 g, 5.5 g, 5.0 g, 4.5 g, 4.0 g, 3.5 g, 3.0 g, 2.5 g, 2.0 g, 1.5 g, 1.0 g, 0.95 g, 0.9 g, 0.85 g, 0.8 g, 0.75 g, 0.7 g, 0.65 g, 0.6 g, 0.55 g, 0.5 g, 0.45 g, 0.4 g, 0.35 g, 0.3 g, 0.25 g, 0.2 g, 0.15 g, 0.1 g, 0.09 g, 0.08 g, 0.07 g, 0.06 g, 0.05 g, 0.04 g, 0.03 g, 0.02 g, 0.01 g, 0.009 g, 0.008 g
  • the amount of one or more compounds is more than 0.0001 g, 0.0002 g, 0.0003 g, 0.0004 g, 0.0005 g, 0.0006 g, 0.0007 g, 0.0008 g, 0.0009 g, 0.001 g, 0.0015 g, 0.002 g, 0.0025 g, 0.003 g, 0.0035 g, 0.004 g, 0.0045 g, 0.005 g, 0.0055 g, 0.006 g, 0.0065 g, 0.007 g, 0.0075 g, 0.008 g, 0.0085 g, 0.009 g, 0.0095 g, 0.01 g, 0.015 g, 0.02 g, 0.025 g, 0.03 g, 0.035 g, 0.04 g, 0.045 g, 0.05 g, 0.055 g, 0.06 g, 0.065 g, 0.07 g, 0.075 g, 0.
  • the amount of one or more compounds ranges from 0.0001 to 10 g, 0.0005 to 9 g, 0.001 to 8 g, 0.005 to 7 g, 0.01 to 6 g, 0.05 to 5 g, 0.1 to 4 g, 0.5 to 4 g, or 1 to 3 g.
  • the compounds are useful in various methods of treating a disease or condition. Accordingly, one embodiment provides a method of treating a disease, the method comprising administering to a subject in need thereof a therapeutically effective amount of a compound of structure (I) according to any one of the embodiments disclosed herein or a composition according to any one of the embodiments disclosed herein, wherein each M is independently a biologically active moiety effective for treating the disease.
  • the disease is cancer, and each M is independently an anti-cancer drug.
  • the disclosure provides a method of treating solid tumors, multiple myeloma, gliomas, clear cell renal cell carcinoma, prostate cancer, ovarian cancer, non-small cell lung cancer, GI malignancies, acute lymphoblastic leukemia, acute myelogenous leukemia, renal cell carcinoma, colorectal carcinoma, epithelial cancers, pancreatic and gastric cancers, renal cell carcinoma, non- Hodgkin' s lymphoma, metastatic renal cell carcinoma, malignant mesothelioma, pancreatic, ovarian, and/or lung adenocarcinoma, B-cell malignancies, breast cancer, melanoma, recurrent multiple myeloma, small cell lung cancer, CD22-positive B cell malignancies, Hodgkin' s lymphoma/anaplastic large cell lymphoma, or HER2 -positive breast cancer.
  • Certain embodiments also relate to a method of treating a hyperproliferative disorder in a mammal (e.g., a human) that comprises administering to said mammal a therapeutically effective amount of a compound, or a pharmaceutically acceptable salt, ester, prodrug, solvate, hydrate or derivative thereof.
  • said method relates to the treatment of cancer such as acute myeloid leukemia, cancer in adolescents, adrenocortical carcinoma childhood, AIDS-related cancers (e.g., Lymphoma and Kaposi's Sarcoma), anal cancer, appendix cancer, astrocytomas, atypical teratoid, basal cell carcinoma, bile duct cancer, bladder cancer, bone cancer, brain stem glioma, brain tumor, breast cancer, bronchial tumors, burkitt lymphoma, carcinoid tumor, atypical teratoid, embryonal tumors, germ cell tumor, primary lymphoma, cervical cancer, childhood cancers, chordoma, cardiac tumors, chronic lymphocytic leukemia (CLL), chronic myelogenous leukemia (CML), chronic myleoproliferative disorders, colon cancer, colorectal cancer, craniopharyngioma, cutaneous T-cell lymphoma, extrahepatic ductal
  • cancer such
  • esthesioneuroblastoma Ewing sarcoma, extracranial germ cell tumor, extragonadal germ cell tumor, eye cancer, fibrous histiocytoma of bone, gall bladder cancer, gastric cancer, gastrointestinal carcinoid tumor, gastrointestinal stromal tumors (GIST), germ cell tumor, gestational trophoblastic tumor, hairy cell leukemia, head and neck cancer, heart cancer, liver cancer, Hodgkin's lymphoma, hypopharyngeal cancer, intraocular melanoma, islet cell tumors, pancreatic neuroendocrine tumors, kidney cancer, laryngeal cancer, lip and oral cavity cancer, liver cancer, lobular carcinoma in situ (LCIS), lung cancer, lymphoma, metastatic squamous neck cancer with occult primary, midline tract carcinoma, mouth cancer, multiple endocrine neoplasia syndromes, multiple myeloma/plasma cell neoplasm, mycosis fungoides,
  • myelodysplastic syndromes myelodysplastic/myeloproliferative neoplasms, multiple myeloma, merkel cell carcinoma, malignant mesothelioma, malignant fibrous histiocytoma of bone and osteosarcoma, nasal cavity and paranasal sinus
  • cancer nasopharyngeal cancer, neuroblastoma, non-Hodgkin's lymphoma, non-small cell lung cancer (NSCLC), oral cancer, lip and oral cavity cancer, oropharyngeal cancer, ovarian cancer, pancreatic cancer, papillomatosis, paraganglioma, paranasal sinus and nasal cavity cancer, parathyroid cancer, penile cancer, pharyngeal cancer, pleuropulmonary blastoma, primary central nervous system (CNS)
  • CNS central nervous system
  • lymphoma prostate cancer, rectal cancer, transitional cell cancer, retinoblastoma, rhabdomyosarcoma, salivary gland cancer, skin cancer, stomach (gastric) cancer, small cell lung cancer, small intestine cancer, soft tissue sarcoma, T-Cell lymphoma, testicular cancer, throat cancer, thymoma and thymic carcinoma, thyroid cancer, transitional cell cancer of the renal pelvis and ureter, trophoblastic tumor, unusual cancers of childhood, urethral cancer, uterine sarcoma, vaginal cancer, vulvar cancer, or Viral-Induced cancer.
  • said method relates to the treatment of a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin (e.g., psoriasis), restenosis, or prostate (e.g., benign prostatic hypertrophy (BPH)).
  • a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin (e.g., psoriasis), restenosis, or prostate (e.g., benign prostatic hypertrophy (BPH)).
  • Certain particular embodiments provide methods for treatment of lung cancers, the methods comprise administering an effective amount of any of the above described compounds (or a pharmaceutical composition comprising the same) to a subject in need thereof.
  • the lung cancer is a non-small cell lung carcinoma (NSCLC), for example adenocarcinoma, squamous-cell lung carcinoma or large-cell lung carcinoma.
  • the lung cancer is a small cell lung carcinoma.
  • Other lung cancers treatable with the disclosed compounds include, but are not limited to, glandular tumors, carcinoid tumors and undifferentiated carcinomas.
  • R 2 is a linker comprising a covalent linkage to a targeting moiety, such as an antibody or a cell surface receptor antagonist.
  • a targeting moiety such as an antibody or a cell surface receptor antagonist.
  • EGFR epidermal growth factor receptor
  • HGFR hepatocyte growth factor receptor
  • IGFR insulin-like growth factor receptor
  • folate a folate
  • MET inhibitor a MET inhibitor
  • the method further comprises inducing apoptosis.
  • the method for treating a disease further comprises:
  • the analyte molecule is a nucleic acid, amino acid or a polymer thereof (e.g., polynucleotide or polypeptide). In still more embodiments, the analyte molecule is an enzyme, receptor, receptor ligand, antibody, glycoprotein, aptamer or prion.
  • the providing further comprises admixing a compound of structure (I) with an analyte molecule.
  • Embodiments of the present compounds thus find utility in any number of methods, including, but not limited: drug delivery; quantifying apoptosis; qualifying therapeutic drug delivery; quantifying apoptosis; and diagnosing and treating diseases, such as blood cancers.
  • embodiments of the compounds of structure (I) find utility in various disciplines and methods, including but not limited to: cancer treatment and imaging, for example by including a targeting moiety, such as an antibody or sugar or other moiety that preferentially binds cancer cells, in a compound of structure (I) to; and/or drug delivery.
  • a targeting moiety such as an antibody or sugar or other moiety that preferentially binds cancer cells
  • the method of treatment comprises treating a tumor having tumor cells with tumor cell receptors.
  • the tumor cells have receptors ranging from 1,000 to 100,000, from 1,000 to 50,000, from 1,000 to 25,000 receptors, 1,000 to 10,000 receptors per cell.
  • the tumor cells have about 1,000, about 10,000, or less than 100,000 receptors per cell.
  • R z , R , L, L , L , L , L , I , L , M, m, n, and/or p variable in a particular embodiment and/or claim it is understood that each individual choice may be deleted from the particular embodiment and/or claim and that the remaining list of choices will be considered to be within the scope of the invention.
  • Suitable protecting groups include hydroxy, amino, mercapto and carboxylic acid.
  • Suitable protecting groups for hydroxy include trialkylsilyl or diarylalkylsilyl (for example, t-butyldimethylsilyl, t-butyldiphenylsilyl or trimethylsilyl), tetrahydropyranyl, benzyl, and the like.
  • Suitable protecting groups for amino, amidino and guanidino include t-butoxycarbonyl, benzyloxycarbonyl, and the like.
  • Suitable protecting groups for mercapto include -C(0)-R" (where R" is alkyl, aryl or arylalkyl), p-methoxybenzyl, trityl and the like.
  • Suitable protecting groups for carboxylic acid include alkyl, aryl or arylalkyl esters.
  • Protecting groups may be added or removed in accordance with standard techniques, which are known to one skilled in the art and as described herein. The use of protecting groups is described in detail in Green, T.W. and P.G.M. Wutz, Protective Groups in Organic Synthesis (1999), 3rd Ed., Wiley.
  • the protecting group may also be a polymer resin such as a Wang resin, Rink resin or a 2-chlorotrityl-chloride resin.
  • Reaction Scheme I illustrates an exemplary method for preparing an intermediate useful for preparation of compounds of structure (I), where R 1 , L 2 , L 3 and M are as defined above, R 2 and R 3 are as defined above or are protected variants thereof and L is an optional linker.
  • compounds of structure a can be purchased or prepared by methods well-known to those of ordinary skill in the art.
  • Reaction of a with M-X, where x is a halogen such as bromo under Suzuki coupling conditions known in the art results in compounds of structure b.
  • Compounds of structure b can be used for preparation of compounds of structure (I) as described below.
  • Reaction Scheme II illustrates an alternative method for preparation of intermediates useful for preparation of compounds of structure (I).
  • a compound of structure c which can be purchased or prepared by well-known techniques, is reacted with M-G to yield compounds of structure d.
  • G and G represent functional groups having complementary reactivity (i.e., functional groups which react to form a covalent bond).
  • G' may be pendant to M or a part of the structural backbone of M.
  • L la is an
  • G and G may be any number of functional groups described herein, such as alkyne and azide, respectively, amine and activated ester, respectively or amine and isothiocyanate, respectively, and the like.
  • the compound of structure (I) may be prepared from one of structures b or d by reaction under well-known automated DNA synthesis conditions with a phosphoramidite compound havin the following structure (e):
  • each L 7 is independently an optional linker.
  • DNA synthesis methods are well-known in the art. Briefly, two alcohol groups, for example R 2 and R 3 in intermediates b or d above, are functionalized with a dimethoxytrityl (DMT) group and a 2-cyanoethyl-N,N-diisopropylamino
  • DMT dimethoxytrityl
  • the phosphoramidite group is coupled to an alcohol group, typically in the presence of an activator such as tetrazole, followed by oxidation of the phosphorous atom with iodine.
  • the dimethoxytrityl group can be removed with acid (e.g., chloroacetic acid) to expose the free alcohol, which can be reacted with a phosphoramidite group.
  • the 2-cyanoethyl group can be removed after oligomerization by treatment with aqueous ammonia.
  • Preparation of the phosphoramidites used in the oligomerization methods is also well-known in the art.
  • a primary alcohol e.g., R 3
  • a secondary alcohol e.g., R 2
  • R 3 a primary alcohol
  • R 2 a secondary alcohol
  • R 2 is then functionalized as a phosphoramidite by reaction with an appropriate reagent such as 2-cyanoethyl ⁇ , ⁇ -dissopropylchlorophosphoramidite.
  • the G moiety can be selected from any of the Q moieties described herein, including those specific examples provided in Table 1.
  • G comprises, at each occurrence, independently a moiety suitable for reactions including: the copper catalyzed reaction of an azide and alkyne to form a triazole (Huisgen 1, 3-dipolar cycloaddition), reaction of a diene and dienophile (Di els- Alder), strain-promoted alkyne-nitrone cycloaddition, reaction of a strained alkene with an azide, tetrazine or tetrazole, alkene and azide [3+2] cycloaddition, alkene and tetrazine inverse-demand Diels- Alder, alkene and tetrazole photoreaction and various displacement reactions, such as displacement of a leaving group by nucleophilic attack on an electrophilic atom.
  • G is, at each occurrence, independently a moiety comprising an aldehyde, oxime, hydrazone, alkyne, amine, azide, acylazide, acylhalide, nitrile, nitrone, sulfhydryl, disulfide, sulfonyl halide, isothiocyanate, imidoester, activated ester, ketone, ⁇ , ⁇ -unsaturated carbonyl, alkene, maleimide, a-haloimide, epoxide, aziridine, tetrazine, tetrazole, phosphine, biotin or thiirane functional group.
  • G comprises, at each occurrence, independently an alkyne or an azide group. In other embodiments, G comprises, at each occurrence, independently an amino, isothiocyanate or activated ester group. In different embodiments, G comprises, at each occurrence, independently a reactive group capable of forming a functional group comprising an alkene, ester, amide, thioester, disulfide, carbocyclic, heterocyclic or heteroaryl group, upon reaction with the complementary reactive group. For example, in some embodiment the heteroaryl is triazolyl.
  • Mass spectral analysis was performed on a Waters/Micromass Quattro micro MS/MS system (in MS only mode) using MassLynx 4.1 acquisition software.
  • Mobile phase used for LC/MS on dyes was 100 mM l, l,l,3,3,3-hexafluoro-2-propanol (HFIP), 8.6 mM triethylamine (TEA), pH 8.
  • HFIP mM l, l,l,3,3,3-hexafluoro-2-propanol
  • TAA triethylamine
  • Phosphoramidites and precursor molecules were also analyzed using a Waters Acquity UHPLC system with a 2.1 mm x 50 mm Acquity BEH-C18 column held at 45°C, employing an acetonitrile/water mobile phase gradient.
  • Ibuprofen-NHS and naproxen-NHS were synthesized using standard coupling conditions. That is, ibuprofen and naproxen were separately dissolved in dichloromethane and to the mixture was added ⁇ , ⁇ '-dicyclohexylcarbodiimide (DCC) and N-hydroxysuccinimide (NHS). Products were then purified as necessary and used in the next synthetic step. Ibuprofen-NHS is easily synthesized in one step on a multi- gram scale. EXAMPLE 2
  • Ibuprofen-NHS was reacted with 2-1 (2-amino- 1,3 -propane diol) followed by the addition of a trityl protecting group to afford intermediate 2-3.
  • the protected product 2-3 was then reacted with 2-4 to afford the final product, 2-5 ibuprofen-phosphoramidite (79%).
  • the ibuprofen- phosphoramidite was then used for automated DNA synthesis to incorporate ibuprofen as a representative biologically active moiety into embodiments of the compounds described herein.
  • Naproxen-phosphoramidite (3-5) was synthesized using analogous reaction conditions and reagents as described for the synthesis of ibuprofen- phosphoramidite shown in Example 2.
  • the desired product was afforded in good yield (79%) and incorporated as a representative biologically active moiety into embodiments of the compounds of the present disclosure.
  • Sequences are prepared with the ibuprofen-phosphoramidite and/or the naproxen-phosphoramidite described in Examples 2 and 3, respectively. Sequences are prepared using automated DNA synthesis techniques and starting materials (e.g., diol and/or triol reagents), which are known in the art. Other advantageous structural features are included in embodiments synthesized according to this method. For example, Fluorescein is easily and conveniently included in some of the constructs. Compounds are synthesized to optionally include a protected thiol moiety (C6SS) which is then used for attachment to a targeting moiety (e.g., an antibody) as described in Example 5.
  • C6SS protected thiol moiety
  • the thiol protecting group of Compound 1 is removed using standard reducing conditions (i. e. , TCEP) and the deprotected thiol is functionalized with bis- maleimidoethane (BMOE) to afford 5-2.
  • BMOE bis- maleimidoethane
  • an UCHT-1 antibody is treated with BMOE to reduce disulfide bonds.
  • the reduced antibody is reacted with 1-2 in a 5 : 1 molar ratio of polymer to antibody. The reaction results in a final product, 5-3.
  • Doxorubicin was reacted with dihydrofuran-2,5-dione to afford a carboxylic acid containing intermediate.
  • the intermediate was activated using TFA- NHS and pyridine to afford doxorubicin-NHS.
  • Doxorubicin-PEG-azide was synthesized according to the reaction sequence shown above on a 50 mg scale. Azide 7-1 was reacted with dihydrofuran-2,5- dione to afford intermediate 7-2, which was reacted with perfluorophenol to afford intermediate 7-3. Intermediate 7-3 was coupled to doxorubicin to afford the desired product, doxorubicin-PEG-azide in good yield (74%). The presence of the desired product was confirmed by LC-MS.
  • Dendrimers as disclosed herein provide compounds with a high density and large number of biologically active moieties on the periphery. Plain and mixed dendrimers can be synthesized using novel phosphoramidite synthons that allow dendrimers to be constructed from interconnected monomeric subunits.
  • the composition of the dendrimer backbone can also be selected to afford desirable solubility properties, for example, by controlling the incorporation of charged moieties (e.g., number, frequency, spacing, etc.).
  • the side chains can be selected to provide a source for tuning the solubility of the compounds disclosed herein. For example, providing positively charged moieties to interact with nucleic acid oligomers to aid in transport across cell membranes.
  • inventions disclosed herein also provide compounds that can advantageously include multiple therapeutic agents, for example, for complimentary or synergistic therapeutic strategies.
  • embodiments of the present disclosure provide combinations of therapeutic agents, targeting moieties, and dye moieties (e.g., fluorophores) that can be used for simultaneous targeting, treatment and detection.
  • therapeutic agents e.g., targeting moieties, and dye moieties (e.g., fluorophores) that can be used for simultaneous targeting, treatment and detection.
  • targeting moieties e.g., fluorophores
  • the ease of coupling dendrimer-drug constructs to targeting agents such as antibodies, antibody fragments, proteins or other clinically interesting agents provides utility to a wide variety of interesting applications (e.g., surface chemistries, assay development, drug delivery etc.)
  • the compounds of certain embodiments also provide other desirable properties, including enhanced permeability and retention effects.
  • the chemical features of embodiments of the present compounds can be adjusted to modulate the compound' s ability to permeate diseased cells/tissue and be retained within the same. These features allow effective delivery of biologically active agents by increasing permeation and increasing efficacy by enhancing retention.

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